AD7440BRMZ Differential Input, 1 MSPS, 12-Bit ADC (AD7450A), and 10-Bit ADC (AD7440)
The AD7450A/AD7440 is a 12-bit and 10-bit, high-speed, low-power, successive approximation (SAR) analog-to-digital converter (ADC) that uses a fully differential analog input and operates from a single 3 V or 5 V supply with a maximum throughput of up to 1 MSPS.
These devices have a built-in low-noise, wide-bandwidth, differential sample-hold (T/H) amplifier that can handle input frequencies above 1 MHz and a -3dB bandwidth of 20MHz typical. The external reference voltage is input via the VREF pin and can vary from 100 mV to 3.5 V, depending on the power supply and application. The voltage reference value determines the common mode voltage range of the device. With this true differential input structure and variable reference input, users can select various input ranges and bias points.
MICROWIRE is a trademark of National Semiconductor Corporation.
SPI and QSPI are trademarks of Motorola Corporation.
Features and Benefits:
- 高吞吐量：1 MSPS
- 额定电压 VDD：3 V和5 V
- 低功耗（最大呑吐量时）：
- 最大4 mW（1 MSPS，3 V电源）
- 最大9.25 mW（1 MSPS，5 V电源）
- 全差分模拟输入
- 灵活的功耗/串行时钟速度管理
- 宽输入带宽： 70 dB信纳比（100 kHz输入频率）
- 无流水线延迟
- 高速串行接口
- SPI®/QSPI™/MICROWIRE™/ DSP 兼容
- 省电模式：最大1 µA
- 8引脚SOT-23和µSOIC封装
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